Wonderland Logic Puzzle

Step by step solution:

1. Girls don't like Leviathan and The Bat rides and they prefer treats that are not cold. 

2. Peter likes Funnel Cake more than Cotton Candy, and like girls doesn't like Leviathan and The Bat.

3. The person who likes the Bat ride also likes ice-cream.

4. Linda's favourite ride is Guardian, and she is scared to ride Time Warp.

5. The person who likes Beavertails also likes Night Mares ride.

When you look at above diagram, Peter favourite rides would be either Night Mares or Time Warp, from #5 and #2 Peter must like Time Warp.

Thus Betty must like Night Mares and Beavertails.

Now we see from the above diagram that Linda must like Cotton Candy.

Peter likes Funnel Cake and he likes the Time Warp ride, let's mark it on our diagram.

Now you can see that whoever likes Snow Cones must like Leviathan ride.

6. John likes Snow Cones.

Thus John likes Leviathan ride, and Adam likes Ice-Cream and The Bat ride.

Solution:
Adam - IceCream - The Bat
Betty - Beavertails - Night Mares
John - Snow Cones - Leviathan
Linda - Cotton Candy - Guardian
Peter - Funnel Cake - Time Warp